added misisng dep
Merge branch 'jacalvo/ldap-removal' of github.com:Zentyal/zentyal into jacalvo/ldap-removal
added setupLDAP and administratorCN methods
added some setup stuff, disabled kerberos temporally
use global method to get global instance
Merge branch 'jacalvo/ldap-removal' of github.com:Zentyal/zentyal into jacalvo/ldap-removal